BBS bodykits were outsourced to kamei/zender, bbs makes the metal, kamei/zender makes the plastics
occasionally they swap designs and outsourced to each other, same goes for bilstein and eibach combo......
teejay, the chop and logo supprisingly does not appear at the usual front lip typically bbs but at the back.I believe the ACS and Zender too and some other e30 body kits brands have some parts in common. They are from the same make and you are right, they outsourced to each other many times.
Nick, not subtle advert but more off creating awareness sharing is caring kekekek... so they say
there should be a kamei or zender somewhere at the back where the TUV numbers are present, K with a large circle or Z with a large circle, else i believe this cud be a SBP/TBP production.....( go figure what it stands for....i have said enuff).....